bf61bb6b7f
The #14869 removed `TraitStore` from `ty_trait` and represented trait reference as regular `ty_rptr`. An old bug of the missing constraint upon lifetime parameter of trait reference then is fixed as a side effect. Adds tests for affected bugs and closes them. Closes #12470. Closes #14285.
26 lines
672 B
Rust
26 lines
672 B
Rust
// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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trait Foo {}
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struct A;
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impl Foo for A {}
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struct B<'a>(&'a Foo);
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fn foo<'a>(a: &Foo) -> B<'a> {
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B(a) //~ ERROR cannot infer an appropriate lifetime
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}
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fn main() {
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let _test = foo(&A);
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}
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